Mechanical movement.



No. 824,969. PATENTED JULY 3, 1906. G. ANDBRSEN & R! BERTRAM.

MECHANICAL MOVEMENT.

APPLICATION FILED FEB, 23, 1906.

a sums-51111111 1 No. 824,969. PATENTED JUL Y. 3, 1906.

G. ANDBRSBN & R. BERTRAM.

MECHANICAL MOVEMENT.

APPLICATION FILED FEB. as. 1906.

3 SHEETS-SHEET 2.

No. 824,969. PATENTED JULY 3, 1906.

0. ANDERSEN & R. BERTRAM. MECHANICAL MOVEMENT.

APPLICATION FILED FEB. 23. 1906.

3 SHEETS-SHEET 8.

QMQS

7n: NORRIS PETERS CO-.'WASHINGTON, n. c.

UNITED STATES PATENT oEEioE.

CHRISTIAN ANDERSEN AND ROBERT BERTRAM, OF DAVENPORT, IOWA,

ASSIGNORS TO H. F. BRAMMER MANUFACTURING CO.. OF DAVEN- PORT, IOVVA, ACORPORATION OF lOl/VA.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented July 3, 1906.

To a, whom it may concern.-

Be it known that we, CHRISTIAN ANDER- SEN and ROBERT BERTRAM, citizensof the United States, residing at Davenport, in the county of Scott andState of Iowa, have invented certain new and useful Improvements inMechanical Movements; and we do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

This invention relates to improvements in mechanical movements of thatclass wherein a rotary reciprocatory motion is imparted to one shaftfrom a continuously-rotative shaft arranged at an angle thereto.

The present improvements are embodied in that general class ofmechanical movements wherein the continuouslyrotative shaft is providedwith a head having an exterior groove traversed by a shoe carried by ayoke affixed to the other shaft, said groove being of such form as totransmit rotary reciprocatory movement to the yoke and attached shaftOne form of this type of mechanical movement is shown in the priorUnited States Patent, No. 703,825, granted July 1, 1902.

In the accompanying illustration of our.

improvements we have followed generally the construction illustrated insaid prior patent; but the illustrated application of our invention isto be regarded as in no wise limiting the scope and application of ourinvention.

Among the objects of the invention is to amplify the throw or movementof the rotary reciprocating shaft, and thereby increase its capacity foruseful work to which said shaft may be adapted.

In a mechanical movement embodying our invention the yoke which moveswith the rotary reciprocatory shaft is provided with two shoes thattraverse the groove of the head, and the relative location of the shoesand the form of the groove are such that the shoes operate alternatelyto transmit motion from the head to the yoke and associated rotaryreciprocatory shaft, and when one shoe is active to transmit such motionthe other shoe is inoperative, but in position to become, operative assoon as the shoe then operative becomes inoperative to transmit motionfrom the head to the yoke. In the present form of construction the headiscut away to provide a recess to receive each shoe during the inactiveperiod of its movement, said recess being of such form and dimensions asto permit inoperative shoe to move bodily therethrough withoutobstructing the movement of the parts.

The invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a 'side elevation of a mechanical movementembodying our invention. Fig. 2 is a side elevation of the operativeparts thereof, showing them in another position. Fig. 3 is a front viewof said parts. Figs. 4 and 5 are plan views of the mechanism, showingthe same at the opposite limits of their swing or throw. Fig. 6 is aperspective view of one of the shoes that transmit motion from therotative head to the yoke of the reversible or rotary reciprocatoryshaft. Fig. 7 is an elevation of one side of the head. Fig. 8 is anelevation of the other side of the head. Figs. 9 and 10 are plan viewsof the head, showing two positions thereof intermediate to the positionsshown in Figs. 4 and 5. Fig. 11 is a perspective view of the head,illustrating the same in another position.

As shown in the drawings, 10 designates a horizontalcontinuously-rotative shaft; 11, a rotary reciprocatory shaft drivenfrom and shown as disposed at a right angle to the shaft 10 12, a headfixed to and rotating with the shaft 10, and 13 a yoke fixed to orcarried by said shaft 11. Said head 12 is provided with anirregularly-shaped peripheral groove 14, and the yoke carries two shoes16 16 which engage and traverse said groove, and by reason of thepeculiar shape of the groove the continuous rotation of the head,imparted thereto by the shaft 10, is translated into a rotaryreciprocatory motion in the shaft 11. As herein shown, the yoke isformed with two members 15 15, on each of which one of the shoes isrotatively mounted. The exterior groove of the head may be made of anyform that will cooperate with the shoes of the yoke to produce thedesired rotary reciprocatory motion of the yoke and the shaft 11. Asherein shown, said groove is made endless, and the members thereof crossor intersect to constitute two loops of the general form of a figure 8.

The horizontal shaft 10 is mounted in arms 17 17, rising from a frame18, that is attached in any suitable manner to the support 19. Thetwo-part yoke 13 is provided at its upper end with an integralbearing-stud 20, that engages a suitable bearing 21, formed on anextension 22 of the forward bearing-arm 17 for the horizontal shaft. Theyoke is formed at its lower side to provide a bearing 23, which issocketed to receive the shaft 11, and is rotatively mounted in asuitable bearingsleeve 24, formed on a forward extension 25 of the frame18, before referred to. The said shoes 16 16 each consist of a flat orweb-shaped body 26 and a shank 27, that has rotative bearing in abearing-aperture formed in an enlargement or boss 28 of the associatedyoke member.

The mechanism herein shown lends itselfwith peculiar adaptability towashing-machines for rotating in alternate directions the dasher of themachine, and when so adapted the shaft 11 constitutes the dasher shaft,while the support 19 constitutes the top wall or cover of the tub of themachine.

In accordance with our invention we provide the yoke 13, constitutingpart of the mechanism for transmitting motion from one shaft to theother, with the two shoes 16 16 referred to, and, as herein shown, theyoke is composed of two angularly-separated members 15 15. Said yokemembers are separated angularly from each other such distance that ineach complete swing of the yoke one of the members thereof moves fromits rearmost position adjacent to the bearingarm 17 of the shaft 10 pastthe vertical plane of the longitudinal aXis of the horizontal shaft,whereby said yoke swings through approximately one-half of a circle.

The shoes are herein shown as so disposed to each other that when theyoke is swung to one limit of its movement one of the shoes occupies onelooped side of the groove, while the other shoe occupies the oppositelooped side of the groove, as. shown in Figs. 4, 5, 9, and 10. But oneof the shoes is active at a time, however, to transmit motion from thehead 12 to the yoke. The head is cut away at its portion bounded by themembers of one of the loops of the groove to form a recess 29, which isoccupied by one of the shoes while the other shoe is active to transmitmotion from the head to the yoke.

The cutting away of the head to form the recess described removes theprincipal part of one of the side walls of one of the loops of thegroove, so that the shoe occupying such recess is free to swing fromside to side thereof, 6 5

the other shoe in the meantime being active to transmit motion from thehead to the yoke.

l/Vhen cutting away the head within one of the looped members of thegroove to form the recess 29, a part 30 thereof is retained to provide aprojection at the intersection or crossing of the loops of the groove inorder to properly guide the shoes to and from the active looped memberof the groove.

At the time one of the shoes enters the active portion of the groove, orthat portion on the side of the head not cut away, the other shoe haspassed into the recess 29, and during the traverse of the shoe throughsaid active portion of the groove said other shoe is swung bodily to andfro across said recess, as indicated by the double arrow on Fig. 7,without obstructing the movement of the parts, and

in the continued rotation of the head the shoe therefore occupying saidrecess passes into the active portion of the groove and be comes itselfactive to transmit motion from the head to the yoke. passes out of oneend of what has been termed. the active loop of the groove into saidrecess 29 the other shoe passes into the opposite end of said activeloop, so that the yoke moves continuously in one direction or the otherand swings in each movement approximately through one-half of a circle.It will also be observed that both members of the yoke are located onthe same side of the axis of oscillation of the yoke and that in eachmovement of the yoke from one side to the other both shoes swing pastthe vertical plane of the longitudinal aXis of the rotative shaft 1 0.

In Fig. 4 the yoke is shown as occupying one limit of its movement,While in Fig. 5 the yoke occupies the opposite limit of its move ment.It will be observed that one of the shoes occupies the middle portion ofthe active loop of the groove when the yoke is at the limit of the swingin either direction, and it is at this point of the traverse of the shoethrough said loop of the groove that the direction of swing of the yokeis reversed, while the head rotates always in the same direction, asindicated by the arrows.

Figs. 9 and 10 illustrate two positions of the head and the shoesintermediate the limits of the swing of the yoke. In Fig. 4 the shoe 16occupies the middle portion of the active loop of the groove and theshoe 16 is at one side of the recess 29. In Fig. 9 the head 16 is shownas having turned half-way over, and the shoe 16 is passing out of oneend of the active loop of the groove, while the shoe 16 has in themeantime swung bodily across the recess 29. In Fig. 10 the head hasturned another half-rotation from the position shown in Fig. 9 and theshoe 16 has entered the active loop of the groove, While the shoe 16 haspassed into the recess 29. WVhile As one of the shoessaid shoe 16 ispassing through the active loop of the groove the shoe 16 will'swingback and forth across said recess, as indicated by the double arrow onFig. 7, said shoe swinging from the position indicated in Fig. 10 tothat indicated in Fig. 5 while the shoe 16 passes from the entering endof the loop to the middle thereof, and, reversely, from the positionindicated in Fig. 5 to that indicated in Fig. 10 while the shoe 16' ispassing from the middle of the active loop of the groove to the endthereof opposite to the end which the shoe entered. The center lines onFigs. 9 and 10 indicate the positions of the two members of the yoke inthe two intermediate positions of the head. Fig. 11 is a perspectiveview of the head and shoes, showing the position of the latter at apoint intermediate with the positions shown in Figs. 9 and 10, said viewillustrating the shoe 16 as passing into the recess 29 and the shoe 16as passing out of said recess into the active loop of the groove. Thearrangement of the parts described permits the yoke and its associatedrotary reciprocatory shaft to swing through approximately one-half of acircle.

The particular angular disposition of the shoe and the form of thegroove are illustrative of but one embodiment of the invention, it beingunderstood that the invention is not limited to such embodiment exceptas pointed out in the specific claims hereto appended.

e claim as our invention 1. In a mechanical movement, wherein a rotaryreciprocatory motion is imparted to one shaft by the continuous rotarymotion of another shaft placed at an angle thereto, operativeconnections between said shafts comprising a grooved head fixed to thecontinuously-rotative shaft, and an oscillatory yoke fixed to the rotaryreciprocatory shaft and two shoes mounted on said yoke and located atone side of the axis of oscillation of said yoke, and engaging andtraversing the groove of said head for the purpose set forth.

2. A mechanical movement comprising two shafts disposed at an angle toeach other, one of which is adapted for continuous rotation in onedirection and the other adapted to be rotated alternately in reversedirections, a grooved head on the continuously-rotative shaft, ayokefixed to the other shaft and two shoes carried by the yoke andadapted to engage and traverse the groove of the head, said shoes beinglocated at such angular distance apart and the groove being so formed asto impart to the yoke an oscillatory movement of approximately onehalf acircle.

3, A mechanical movement comprising two shafts disposed at an angle toeach other, one of which is adapted for continuous rota tion in onedirection and the other of which is adapted for reciprocatory rotation,a head on the continuously-rotative shaft provided with an endlessgroove, the members of which cross or intersect to form two loops, ayoke on the other shaft and two shoes carried by the said yoke andadapted to engage and traverse said groove.

at. In a mechanical movement, wherein a rotary reciprocatory motion isimparted to one shaft by the continuous rotary motion of another shaftplaced at an angle thereto, operative connections between said shaftscomprising a grooved head fixed to the continuously-rotative shaft, anoscillatory yoke fixed to the rotary reciprocatory shaft and two shoesmounted on said yoke and located at one side of the axis of oscillationof said yoke said head being provided at one side with a recess adaptedto receive one of the shoes while the other shoe is traversing thegroove of Fhe head, and vice versa, for the purpose set orth.

5. A mechanical movement comprising two shafts located at an angle toeach other,

and adapted to engage and traverse said groove, said head being cut awayin the space surrounded by one of the loops to form a recess.

6. A mechanical movement comprising two shafts located at an angle toeach other, one of which is adapted for continuous rotation in onedirection and the other of which is adapted. to be rotated alternatelyin reverse directions, a head on the rotative shaft provided with agroove formed to provide two loops, an oscillating yoke fixed to theother shaft and shoes mounted on the yoke and adapted to engage andtraverse said groove, said head being cut away in the space surroundedby one loo to form a recess.

7. A mechanica movement comprising two shafts arranged at an angle toeach other one of which is adapted for continuous rotation in onedirection and the other adapted to be rotated alternately in reversedirections, a grooved head on the continuously-rotative shaft, ahorizontally-swinging yoke fixed to the other shaft and provided withtwo shoes engaging and traversing the groove of said' head, said groovebeing so formed that both shoes pass the vertical plane of the centralaXis of the head in each swing of the yoke.

8. A- mechanical movement comprising two shafts located at an angle toeach other, one of which is adapted for continuous rotation in onedirection and the other adapted to be rotated alternately in reversedirections, a yoke fixed to the latter shaft proother is active totransmit motion from the vided With two shoes, a head fixed to theconpresence of two Witnesses, this 18th day tinuously-rotative shaft andprovided With January, A. D. 1906. to

an exterior groove traversed by said shoes, CHRISTIAN ANDERSEN one ofsaid shoes being inoperative, While the ROBERT BERTRAM head to the yokeand vice versa. Witnesses:

In testimony that We claim the foregoing GEO. PILDING, as our inventionWe afliX our s1gnatures,1n WM. THIBE.

